Modelling results at +5 C, +25 C, and +40 C and TOC settings of 0.1 (white circles), 0.25 (light grey diamonds) and 1 (dark grey triangles) relative to Phanerozoic mean are illustrated for maximum benthic O 2 concentrations in the night and day, schematic field with colour codes for oxygen concentrations as in A-B. In ( E ), modelling results for maximum benthic O 2 concentrations at night (scale to the left) at the different TOC settings are marked with full red outline and emphasised with a blue field. Modelling results for maximum benthic O 2 concentrations in the day (scale to the right) at the different TOC settings are marked with dashed green outline and emphasised with a yellow field.